Single shear for cutting and conveying multiple rolled sections

Patent metadata

Field	Value
Publication number	US-10596643-B2
Application number	US-201415027221-A
Country	US
Kind code	B2
Filing date	Oct 8, 2014
Priority date	Oct 9, 2013
Publication date	Mar 24, 2020
Grant date	Mar 24, 2020

Abstract

The single shear described herein for cutting and simultaneously conveying one or more pairs of rolling wires or bars includes a mobile diverter consisting of at least two channels in each of which a wire or bar slides. The single shear further includes at least two pairs of counter-knives, each of which acts on the wire or bar, and a conveying device for conveying the cut segments of wires or bars. The conveying device may include at least one pair of mobile elements configured to be independent of each other, but configured to be synchronized with each other and with the mobile diverter for the separate management of each of said cut sections of wires or bars. The single shear may finally include at least two pairs of output channels for conveying the cut segments of wires or bars.

First claim

The invention claimed is:

1. A method of cutting and conveying rolling wires or bars using a shear, the shear for cutting and simultaneously conveying the wires or bars and comprising:
i) a mobile diverter comprising at least two channels in each of which one of the wires or bars can slide;
ii) counter-rotating knives acting on the wires or bars, thus producing one or more pairs of segments of wire or bar; and
iii) a conveying device for conveying the one or more pairs of segments of wire or bar, comprising
at least two pairs of output channels for conveying the one or more pairs of segments of wire or bar, and
at least one pair of mobile elements that are independent of each other and synchronized with each other and with the mobile diverter so as to separately manage each segment of said one or more pairs of segments of wire or bar and insert each segment in a respective output channel of said at least two pairs of output channels,

wherein the mobile diverter is configured to take:
a first conveying position at which the wires or bars are conveyed in a first pair of the at least two pairs of output channels;
a second conveying position at which the wires or bars are conveyed in a second pair of the at least two pairs of output channels;
and an intermediate cutting position, between the first conveying position and the second conveying position, at which the wires or bars come into contact with the counter-rotating knives;
and wherein a first mobile element of said at least one pair of mobile elements is positioned at an entrance of a first central output channel of said first pair of said at least two pairs of output channels, and a second mobile element of said at least one pair of mobile elements is positioned at an entrance of a second central output channel of said second pair of said at least two pairs of output channels, said second central output channel being adjacent to the first central output channel;
the method comprising the following sequence of steps:
a) providing the mobile diverter in said first conveying position, and simultaneously lowering said first mobile element up to a total opening of said first central output channel and raising said second mobile element up to a total closing of said second central output channel;
b) moving the mobile diverter in a first direction towards the intermediate cutting position, and simultaneously raising the first mobile element up to a partial closure of the first central output channel and lowering the second mobile element up to a partial opening of the second central output channel;
c) moving the mobile diverter in said first direction up to reaching said second conveying position, and simultaneously raising the first mobile element up to a total closure of the first central output channel and lowering the second mobile element up to a total opening of the second central output channel;
d) moving the mobile diverter in a second direction, opposite to the first direction, towards the intermediate cutting position, and simultaneously lowering the first mobile element up to a partial opening of the first central output channel and raising the second mobile element up to a partial closure of the second central output channel;
e) moving the mobile diverter in said second direction up to reaching said first conveying position;
f) repeating steps a)-e).

2. A method according to claim 1 , wherein in step a) the wires or bars slide inside the first pair of the at least two pairs of output channels; and in step c) the wires or bars slide inside the second pair of the at least two pairs of output channels.

3. A method according to claim 1 , wherein in step b) and in step d), at the cutting position, the first mobile element and the second mobile element are at a same height.

Assignees

• Danieli Off Mecc

Inventors

• Bordignon Giuseppe
• Zerajic Miroslav

Classifications

• B21B39/18

  Switches for directing work in metal-rolling mills or trains · CPC title

• B21B2015/0021

  in the rolling direction · CPC title

• B23D33/02 Primary

  Arrangements for holding, guiding, and/or feeding work during the operation · CPC title

• B23D25/12

  Shearing machines with blades on coacting rotating drums · CPC title

• B21B15/0007

  Cutting or shearing the product · CPC title